种一棵树最好的时间是20年前，第二好的时间是现在。

The only way to do great work is to love what you do.

Freedom is not given, it is taken.

未来是未知的，所以我们应该珍惜现在。

A well-designed system is one that can evolve over time without requiring significant rework.

【译文】来势像暴风骤雨一样猛烈，退去像微尘飘落一样静悄悄。长江的后浪推涌着前浪，世上的新人赶超着旧人。